Native Plants
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Polygonum robustius
Polygonum robustius (Small) Fernald
Coarse Smartweed, Robust Knotweed, Stout Smartweed
Polygonaceae (Buckwheat family)
Synonym(s): Persicaria robustior, Polygonum punctatum var. majus, Polygonum punctatum var. robustius
USDA Symbol: PORO
USDA Native Status: L48 (N), PR (N), CAN (N)
From the Image Gallery
No images of this plant
Plant Characteristics
Duration: PerennialHabit: Herb
Fruit Type: Achene
Size Notes: Up to about 6-1/2 feet tall.
Bloom Information
Bloom Color: White , GreenBloom Time: Jul , Aug , Sep , Oct
Distribution
USA: CT , FL , IN , KY , MA , MD , MI , MO , NH , NJ , NY , OH , PA , RI , TX , VACanada: NS , ON , QC
Native Habitat: Peaty shores, often in water on coastal plain or near coast.
National Wetland Indicator Status
Region: | AGCP | AK | AW | CB | EMP | GP | HI | MW | NCNE | WMVE |
Status: | OBL | UPL | OBL | OBL | OBL |
Web Reference
Webref 3 - Flora of North America (2014) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter
Additional resources
USDA: Find Polygonum robustius in USDA PlantsFNA: Find Polygonum robustius in the Flora of North America (if available)
Google: Search Google for Polygonum robustius
Metadata
Record Modified: 2020-11-12Research By: CBR